GEN 2 Strange 4A Behavior

[Domin0]

We have a lot of variables here. to me, the tires seem like the likely culprit here. It’s entirely possible you could have resolved an issue on the 2 now front tires but left the now rear tire or tires as bad or worse. A quick check would be to move the rears to the front temporarily and see if the steering wheel shakes at speed. If so, start with the tires again.

I run about 34-35 / 32-33 front/rear and I know others go lower in the rear. Another FRF just did the shoe polish test and got to the Raptor Assault recommended 32/28 for full contact patch - and even wear.

Here’s a wildcard: Please check the lug nuts. make sure they 1) attached all the lug nuts. 2) torqued them enough to stay on 3) didn’t over-drive them on with a 500 foot pound impact wrench.

At the dealership now, and apparently you need to explicitly ask for a Road Force balance, otherwise they just perform a "standard" balance... Lugs were at least accounted for and torqued down properly. I asked for a better assessment of the tires, and an RF balance. Really unhappy with this place right now.

 

[smurfslayer]

yeah, at least your stealership HAS R/F balance ;-)

 

[Domin0]

yeah, at least your stealership HAS R/F balance ;-)

Huge thanks to you for mentioning it. In the words of the service manager, the balance they performed was “terrible,” and they corrected it with the R/F at no charge. The passenger rear tire is apparently out-of-round, and will exhibit hop, but the vibration has been eliminated.

 

[smurfslayer]